Following that match, Szczesny Sr said: “It doesn’t surprise me as they are known for making stuff up. I have heard Wojciech smokes sometimes but he’s not that stupid to smoke in the dressing room.

“He made a mistake for the first [Southampton] goal, coming too far from the goal, but please look at the Arsenal defence – how these guys are playing is a disaster, but for some reason, nobody pays any attention to it.

“Laurent Koscielny should immediately have run [back] to protect Wojciech, and Per Mertesacker should have stood in the goal. Unfortunately they did not do that and gave him zero support, and in that situation Mertesacker showed the agility of a rhinoceros.

“Wojciech is often paying for it [the mistakes], and that he really cares. He needs someone who will critically analyse every game with him, but also remain positive.”

Szczesny hasn't played a Premier League game since that defeat, having been displaced by David Ospina.

Replacement: David Ospina is Arsenal's new No1 (Image: David Price)

And almost five months on from the incident, Szczesny has slammed his dad, who played for Legia Warsaw and Wisla Krakow during his career, and claims he hasn't spoken to him for over two years.

“Really shouldn’t be dealing with this one day before the cup final but my father leaves me no choice,” Szczesny wrote Facebook.

“I have not spoken to him in more than 2 years and just like everybody else I have had enough of his idiotic comments about The Football Club and The Manager I owe so much to! Therefore please do not consider his comments as my shared view. Thank You for your understanding!”

Here's what his dad had said:

“I want to believe that he will regain what he has lost and win back the place in Arsenal’s goal next season. If he really has no chances to play, he can start looking for opportunities at equally strong team.

“It’s hard to deny that Wojciech’s relationship with Wenger hasn’t been great for some time now. The current situation is not just a coincidence. It’s not all Wojciech’s fault and I’m not saying that because I’m his father and would want to act as his agent.

"Wenger shall not be counted amongst loyal individuals. He doesn’t always keep his promises and isn’t always honest. He willingly claims that there is a cigarette ash on his suit jacket, whereas in fact it’s his own dandruff.

“In my opinion Wenger is always keen to blame others, but rarely sees fault in himself. I think he might have expressed his anger and frustration on Wojciech in the dressing room. If that was the case, Wojciech had to do something and deal with it. He [Wojciech] had a right to say what he thinks about it, regardless of an athlete’s, his team-mates’ and club’s class.

"He is not benched because of his poor performance. It’s not his fault that he conceded so many goals – look at what his defence were doing, these ‘miracles’ in defending.

“I wonder if Ospina had all these great stats if he played for Arsenal between November and January. I think the fans would be equally critical about him as they are towards Wojciech.

“I don’t know what’s going on at Arsenal, but I know what type of a person Wojciech is. He has a great character, probably greater than mine, his tough, ambitious and determined. That’s why he would never want to leave. He will do his best to regain the spot in the goal. He is still one of the world’s best keepers and I feel confident about his skills and abilities.

“Naturally, I may not be aware of everything. Perhaps Wojciech knows that under Wenger he would never be Arsenal’s No. 1 keeper again. In that case he should leave but only to an equally strong team where he could challenge for similar aims.

“He can’t go to Swansea like Lukasz Fabianski, only to play football, but has to move somewhere where he’s appreciated and won’t drop the level he worked so far for over these years in London.”